A simple technique for ear piercing.
Explore the source record for details and available documents.
2-Propanol↗
Biomedical subjects
S Zahner
Publications and source records attributed to S Zahner.
[Acute vestibular syndrome in cerebellar infarct of the posterior inferior cerebellar artery (PICA infarct)].
The differential diagnosis of an acute peripheral vestibulopathy ("vestibular neuritis") and of an ischemic lesion in the cerebellar territory of the posterior-inferior cerebellar artery (PICA) is important. Both present with acute vertigo, vomiting, spontaneous nystagmus and difficulties in walking. We analyze the clinical, oculographic and NMR findings as well as the outcome in 10 patients with an ischemic stroke in the cerebellar territory of the PICA. On clinical grounds alone, it is not always possible to attribute the acute vestibular syndrome to a peripheral vestibular lesion or to a PICA insult. In our experience an important feature of a PICA insult is a discrepancy between the amount of vertigo, the severity of the walking difficulties, and the often weak and rapidly resolving spontaneous nystagmus. In contrast to a peripheral vestibulopathy, the vestibuloocular reflex is only minimally or not decreased in PICA insults, and gain asymmetries are accounted for by the presence of spontaneous nystagmus. However, only neuroimaging can finally differentiate between the two entities.
Adult↗
Normal development of cardiac beta adrenoceptors in mice exposed to ethanol in utero.
Abnormalities of cardiac physiology and anatomy may occur in children with the fetal alcohol syndrome. To understand the basis of these abnormalities, research has been performed which shows that in mice exposed to ethanol from gestation day 8 to birth via a liquid diet regime with pairfed controls there are ultrastructural changes in the cardiac myocytes. To determine if the exposure to ethanol also affects the development of the cardiac noradrenergic system, which in turn could cause developmental abnormalities, beta adrenoreceptor binding was characterized by Scatchard analyses of concentration dependent binding curves in newborn mice exposed to ethanol in utero. Although body and heart weight were lower in newborns from both the pairfed and ethanol groups compared to a normally fed group, no differences in the densities of the beta adrenoceptors or in the Kd values for binding were seen due to the ethanol or the liquid diet regime. Therefore, at least one component of the development of the cardiac sympathetic system was not altered by ethanol exposure or a reduced caloric intake.
Animals↗